BIOS 312 Exam 3 Questions With Correct
Answers
Which of these is NOT a mechanism of antibiotic resistance?
cell division
A/An _____ is a hertitable change in the genome.
mutation
The toxin-antitoxin and stringent response pathways are considered _____
mechanisms.
stress response
Which molecular processes do antibiotics TYPICALLY target?
DNA synthesis, RNA synthesis, and protein synthesis
Which of these is NOT considered a phenotype of a mutant?
biofilm-forming
The term auxotrophy mean a cells has _____.
lost its ability to produce a vital nutrient
What is the difference between a WT strain and a background strain?
the WT strain does not have genetic mutations, whereas the background strain
can have mutations
What observation is required in order to identify auxotrophic mutants?
they must not grow on media missing a nutrient
Persister cells are _____, helping them survive antibiotic exposure.
, dormant
Which type of mutation requires screening?
non-selectable mutations
The WT strain is the _____ strain of a species.
originally isolated
Evolution is driven by _____.
mutations and genetic exchange
What does the toxin do in the toxin-antitoxin module?
slows down cellular growth
A scientist inserts a GFP tag into a gene to visualize protein localization. This is an
example of:
Direct mutatgenesis
What is the main difference between genomics and proteomics?
Genomics studies DNA, proteomics studies proteins
Genome alignment refers to:
Assembling reads into contiguous sequences
Why are bioinformatics tools necessary in modern genomics?
To analyze and organize massive amounts of sequence data
A researcher uses UV light to introduce mutations in bacterial DNA. Which type of
mutagenesis is this?
Random mutagenesis
Which sequencing technology is known for producing short reads (50-150 bp)?
Illumina
Why are shorter read lengths sometimes preferred in sequencing?
Answers
Which of these is NOT a mechanism of antibiotic resistance?
cell division
A/An _____ is a hertitable change in the genome.
mutation
The toxin-antitoxin and stringent response pathways are considered _____
mechanisms.
stress response
Which molecular processes do antibiotics TYPICALLY target?
DNA synthesis, RNA synthesis, and protein synthesis
Which of these is NOT considered a phenotype of a mutant?
biofilm-forming
The term auxotrophy mean a cells has _____.
lost its ability to produce a vital nutrient
What is the difference between a WT strain and a background strain?
the WT strain does not have genetic mutations, whereas the background strain
can have mutations
What observation is required in order to identify auxotrophic mutants?
they must not grow on media missing a nutrient
Persister cells are _____, helping them survive antibiotic exposure.
, dormant
Which type of mutation requires screening?
non-selectable mutations
The WT strain is the _____ strain of a species.
originally isolated
Evolution is driven by _____.
mutations and genetic exchange
What does the toxin do in the toxin-antitoxin module?
slows down cellular growth
A scientist inserts a GFP tag into a gene to visualize protein localization. This is an
example of:
Direct mutatgenesis
What is the main difference between genomics and proteomics?
Genomics studies DNA, proteomics studies proteins
Genome alignment refers to:
Assembling reads into contiguous sequences
Why are bioinformatics tools necessary in modern genomics?
To analyze and organize massive amounts of sequence data
A researcher uses UV light to introduce mutations in bacterial DNA. Which type of
mutagenesis is this?
Random mutagenesis
Which sequencing technology is known for producing short reads (50-150 bp)?
Illumina
Why are shorter read lengths sometimes preferred in sequencing?
